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Finding the Fourth Proportional to 191,853,478.60, 269,199,531.80 and 191,853,478.60

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Solution

The fourth proportional to 191,853,478.60, 269,199,531.80 and 191,853,478.60 is: 269,199,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,853,478.60 : 269,199,531.80 = 191,853,478.60 : x
  2. Step 2: Convert to fraction form
    191,853,478.60/269,199,531.80 = 191,853,478.60/x
  3. Step 3: Cross multiply
    191,853,478.60x = 269,199,531.80 × 191,853,478.60
  4. Step 4: Simplify right side
    191,853,478.60x = 51,646,866,613,321,320
  5. Step 5: Solve for x
    x = 51,646,866,613,321,320/191,853,478.60
  6. Step 6: Final answer
    x = 269,199,531.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.